Inversion
"Sir, I'm getting some calibration errors. I'm going to invert your looking pitch, so you can see if you like it better that way."
The Master Chief frowned under his helmet. This was unusual. He'd never heard any technician talk about inverting his suit's looking pitch. What would that even do? It just sounded... Wrong.
"Okay, try it again."
He did. He looked at the top light... Only he didn't. He found himself looking at the bottom light. He tried once more to look down, only to find his gaze on the floor. He began to panic, trying once again to look down to no avail. His chin clanked against his chest, and he waved his arms erratically. He tried looking down, only for his head to shoot up again, throwing him off balance and back onto the floor.
Now thoroughly disorientated, he began to thrash about wildly, his neck not obeying instruction. Horizontal turning still worked the same, only confusing him further as he rapidly devolved into the world's most high-tech epileptic fit.
Watching his race's future saviour roll around on the floor, grunting and screaming like a child was more than a little demoralising for the technician who had inverted the Mark V's looking pitch. So captivated was he, that he didn't even notice when an Elite Zealot burned though the locked door with a triumphant roar, pointing his rifle at the human.
However, the alien had been expecting fear, cries for help. Not to be ignored. He looked down into the cryo bay, and too began to observe the strangely captivating display. The Grunts behind him joined in, and soon the entire ship, both its original occupants and boarders, we're watching the Master Chief perform his innovative mix of breakdancing and opera. But all good things must come to an end.
Eventually, the Chief got the hang of an inverted head. He got up, looked around, and slaughtered every last one of them.
Stomping up to the bridge, the Master Chief scowled at Cortana's horrified expression. She gaped at him, blood of all colours still running off his armour. He rolled his eyes.
"How would you feel if someone switched the ship's cannon and fire alarm?" He asked. She thought for a second.
"Fair enough. Let's just go, shall we?"